Mobile patient monitoring based on impedance-loaded SAW-sensors

被引：26

作者：

Karilainen, A ^{[1
]}

Finnberg, T ^{[1
]}

Uelzen, T ^{[1
]}

Dembowski, K ^{[1
]}

Müller, J ^{[1
]}

机构：

[1] Tech Univ Hamburg, Dept Microsyst Technol, D-21073 Hamburg, Germany

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2004年 / 51卷 / 11期

关键词：

D O I：

10.1109/TUFFC.2004.1367487

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A remotely requestable, passive, short-range sensor network for measuring small voltages is presented. The sensor system is able to simultaneously monitor six small voltages in millivolt-range, and it can be used for Holter-electrocardiogram (ECG) and other biopotential monitoring, or in industrial applications. The sensors are based on a surface acoustic wave (SAW) delay line with voltage-dependent, impedance loading on a reflector interdigital transducer (IDT). The load circuit impedance is varied by the capacitance of the voltage-controlled varactor. High resolution is achieved by developing a MOS-capacitor with a thin oxide, low flat-band voltage, and zero-voltage capacitance in the space-charge region, as well as a high-Q-microcoil by thick metal electroplating. Simultaneous monitoring of multiple potentials is realized by time-division-multiplexing of different sensor signals.

引用

页码：1464 / 1469

页数：6

共 13 条

[1] Comparative studies on polymer coated SAW and STW resonators for chemical gas sensor applications [J].

Avramov, ID ;

Rapp, M ;

Voigt, A ;

Stahl, U ;

Dirschka, M .

PROCEEDINGS OF THE 2000 IEEE/EIA INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM & EXHIBITION, 2000, :58-65

[2] The mobile patient: Wireless distributed sensor networks for patient monitoring and care [J].

Bauer, P ;

Sichitiu, M ;

Istepanian, R ;

Premaratne, K .

2000 IEEE EMBS INTERNATIONAL CONFERENCE ON INFORMATION TECHNOLOGY APPLICATIONS IN BIOMEDICINE, PROCEEDINGS, 2000, :17-21

[3] Ergebnisse der EKG-Interpretation mittels SignalmustererkennungResults of ECG interpretation by means of signal waveform recognition [J].

R. Bousseljot ;

D. Kreiseler .

Herzschrittmachertherapie + Elektrophysiologie, 2000, 11 (4) :197-206

[4] Computationally efficient ECG compression scheme using a non-linear quantizer [J].

Cassen, M ;

English, MJ .

COMPUTERS IN CARDIOLOGY 1997, VOL 24, 1997, 24 :283-286

[5] Implementation of a WAP-Based telemedicine system for patient monitoring [J].

Hung, K ;

Zhang, YT .

IEEE TRANSACTIONS ON INFORMATION TECHNOLOGY IN BIOMEDICINE, 2003, 7 (02) :101-107

[6] In-home wireless monitoring of physiological data for heart failure patients [J].

Mendoza, GG ;

Tran, BQ .

SECOND JOINT EMBS-BMES CONFERENCE 2002, VOLS 1-3, CONFERENCE PROCEEDINGS: BIOENGINEERING - INTEGRATIVE METHODOLOGIES, NEW TECHNOLOGIES, 2002, :1849-1850

[7]

MORIIUZUMI T, 1994, P IEEE ULTR S NOV, P499

[8]

MULLER J, 2002, Patent No. 10361991

[9] A review of wireless SAW sensors [J].

Pohl, A .

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2000, 47 (02) :317-332

[10]

Schimetta G, 2000, IEEE T MICROW THEORY, V48, P2730, DOI 10.1109/22.899037

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